What's in your computer?
Components on a motherboard
The CPU is essential in a computer. CPU stands for Central processing unit.
Some more expensive CPU’s come with a heat sync, also you can buy them. A heat sync is like a fan to cool your CPU.
A CPU has about 204 pins to connect to the motherboard. You must select the appropriate motherboard for your CPU.
ROM means (read only memory). It means that it stores all the tasks what you have done. It also contains the boot firmware. For example, ROM stores the instructions for the computer to start up when it is turned on again. A ROM is non-removable.
A hard disk stores:
- the operating system
- software applications or programs
- the majority of your data files
Hard disks spin at very high speeds (around 7,200 RPM - revolutions per minute) within a sealed unit inside the computer.
Hard disks store large amounts of data - 200GB (gigabyte) to 5TB (terrabyte)
is common in desktop computers. Some Data Centres Hold 100PB - 1PB (petebyte)
The data stored on a hard disk is retained until deleted, but it needs to be loaded into main store RAM before it can be used.